AlexIndustrial/mesa
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

cell: implement NRM3 opcode

Browse Source
This commit is contained in:
Brian Paul
2008-11-11 09:19:18 -07:00
parent 90027f8578
commit 7f3d45758c
1 changed files with 48 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/gallium/drivers/cell/ppu/cell_gen_fp.c
+48
View File
@@ -879,6 +879,52 @@ emit_DPH(struct codegen *gen, const struct tgsi_full_instruction *inst)
return true;
}
/**
* Emit 3-component vector normalize.
*/
static boolean
emit_NRM3(struct codegen *gen, const struct tgsi_full_instruction *inst)
{
int ch;
int src_reg[3];
int t0_reg = get_itemp(gen), t1_reg = get_itemp(gen);
spe_comment(gen->f, -4, "NRM3:");
src_reg[0] = get_src_reg(gen, CHAN_X, &inst->FullSrcRegisters[0]);
src_reg[1] = get_src_reg(gen, CHAN_Y, &inst->FullSrcRegisters[0]);
src_reg[2] = get_src_reg(gen, CHAN_Z, &inst->FullSrcRegisters[0]);
/* t0 = x * x */
spe_fm(gen->f, t0_reg, src_reg[0], src_reg[0]);
/* t1 = y * y */
spe_fm(gen->f, t1_reg, src_reg[1], src_reg[1]);
/* t0 = z * z + t0 */
spe_fma(gen->f, t0_reg, src_reg[2], src_reg[2], t0_reg);
/* t0 = t0 + t1 */
spe_fa(gen->f, t0_reg, t0_reg, t1_reg);
/* t1 = 1.0 / sqrt(t0) */
spe_frsqest(gen->f, t1_reg, t0_reg);
spe_fi(gen->f, t1_reg, t0_reg, t1_reg);
for (ch = 0; ch < 3; ch++) { /* NOTE: omit W channel */
if (inst->FullDstRegisters[0].DstRegister.WriteMask & (1 << ch)) {
int d_reg = get_dst_reg(gen, ch, &inst->FullDstRegisters[0]);
/* dst = src[ch] * t1 */
spe_fm(gen->f, d_reg, src_reg[ch], t1_reg);
store_dest_reg(gen, d_reg, ch, &inst->FullDstRegisters[0]);
}
}
free_itemps(gen);
return true;
}
/**
* Emit cross product. See emit_ADD for comments.
*/
@@ -1769,6 +1815,8 @@ emit_instruction(struct codegen *gen,
return emit_DP4(gen, inst);
case TGSI_OPCODE_DPH:
return emit_DPH(gen, inst);
case TGSI_OPCODE_NRM:
return emit_NRM3(gen, inst);
case TGSI_OPCODE_XPD:
return emit_XPD(gen, inst);
case TGSI_OPCODE_RCP: